Can't reindex after XRay update

2016-02-28 04:01:31,772 IssueIndexer:thread-9 WARN thkrause 240x526x1 9arf88 10.46.78.65,130.30.3.34 /secure/admin/jira/IndexReIndex.jspa [jira.issue.index.DefaultIssueDocumentFactory] Error indexing issue RSPWT-911: Dropping 'customfield_12818'
com.atlassian.jira.issue.index.SearchUnavailableException
        at com.atlassian.jira.issue.index.DefaultIndexManager.getIssueSearcher(DefaultIndexManager.java:832)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.atlassian.util.profiling.object.ObjectProfiler.profiledInvoke(ObjectProfiler.java:83)
        at com.atlassian.jira.config.component.SwitchingInvocationHandler.invoke(SwitchingInvocationHandler.java:28)
        at com.sun.proxy.$Proxy14.getIssueSearcher(Unknown Source)
        at com.atlassian.jira.issue.search.SearchProviderFactoryImpl.getSearcher(SearchProviderFactoryImpl.java:27)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.search(LuceneSearchProvider.java:420)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.search(LuceneSearchProvider.java:97)
        at com.atlassian.jira.issue.search.providers.LuceneSearchProvider.search(LuceneSearchProvider.java:86)
        at com.atlassian.jira.bc.issue.search.DefaultSearchService.search(DefaultSearchService.java:116)  <+3> (NativeMethodAccessorImpl.java:62) (DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:129)
        at com.sun.proxy.$Proxy194.search(Unknown Source)  <+3> (NativeMethodAccessorImpl.java:62) (DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:154)
        at com.sun.proxy.$Proxy194.search(Unknown Source)
        at com.xpandit.raven.service.impl.RequirementServiceImpl.c(Unknown Source)
        at com.xpandit.raven.requirement.a.a(Unknown Source)
        at com.xpandit.raven.requirement.a.a(Unknown Source)
        at com.xpandit.raven.requirement.a.a(Unknown Source)
        at com.xpandit.raven.customfield.RequirementStatusCustomField.a(Unknown Source)
        at com.xpandit.raven.customfield.RequirementStatusCustomField.loadValueFromIssue(Unknown Source)
        at com.xpandit.raven.customfield.RequirementStatusCustomField.loadValueFromIssue(Unknown Source)
        at com.xpandit.raven.customfield.RequestCachedCalculatedCFType.getValueFromIssue(Unknown Source)
        at com.atlassian.jira.issue.fields.CustomFieldImpl.getValue(CustomFieldImpl.java:437)
        at com.xpandit.raven.customfield.searchers.a.a(Unknown Source)
        at com.xpandit.raven.customfield.searchers.a.addDocumentFieldsSearchable(Unknown Source)
        at com.atlassian.jira.issue.index.indexers.impl.AbstractCustomFieldIndexer.addIndex(AbstractCustomFieldIndexer.java:46)
        at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory$Builder.add(DefaultIssueDocumentFactory.java:102)
        at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory$Builder.addAll(DefaultIssueDocumentFactory.java:91)
        at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory.apply(DefaultIssueDocumentFactory.java:60)
        at com.atlassian.jira.issue.index.DefaultIssueDocumentFactory.apply(DefaultIssueDocumentFactory.java:37)
        at com.atlassian.jira.issue.index.DefaultIssueIndexer$DefaultDocumentCreationStrategy.get(DefaultIssueIndexer.java:664)
        at com.atlassian.jira.issue.index.DefaultIssueIndexer$IndexIssuesOperation.perform(DefaultIssueIndexer.java:502)
        at com.atlassian.jira.issue.index.DefaultIssueIndexer$4$1.get(DefaultIssueIndexer.java:337)
        at com.atlassian.jira.issue.index.DefaultIssueIndexer$4$1.get(DefaultIssueIndexer.java:333)
        at com.atlassian.jira.index.SimpleIndexingStrategy.get(SimpleIndexingStrategy.java:9)
        at com.atlassian.jira.index.SimpleIndexingStrategy.get(SimpleIndexingStrategy.java:5)
        at com.atlassian.jira.index.MultiThreadedIndexingStrategy$1.call(MultiThreadedIndexingStrategy.java:38)
        at com.atlassian.jira.index.MultiThreadedIndexingStrategy$1.call(MultiThreadedIndexingStrategy.java:35)
        at com.atlassian.jira.util.concurrent.BoundedExecutor$2.call(BoundedExecutor.java:85)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)